McGaughy's Drop Spindle Question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

NoNeck · 07-29-2011, 10:33 AM

My son purchased a set of McGaughy's Classic Drop 2.5" Spindles from a forum member. We have the spindles installed, and the ball joints and tie rods bolt up just fine. His truck has an '84 front suspension cradle, so the drop spindles were supposedly for the '73-'87 trucks.

The numbers cast onto the face of the spindles are "6072L and 6072R". The original McGaughy's box states to use "Heavy Duty" brake components.

We have contacted both Summit and Jegs to order cross-drilled and slotted rotors for these spindles. The problem is, they don't show a part number for the spindles. Plus, when I do a Google search, nothing comes up.

I am wondering if the number "6072" might be a very early McGaughy's casting, and designates the model years '60-'72?

I guess I will try to call McGaughy's when they open. Any info until then would be appreciated.

Thanks, NoNeck

**Clyde65** · 07-29-2011, 11:26 AM

I think they are 63-72 , have you called McGaughy's?

Let me know, if they are and you cant use them, I may be interested.

NoNeck · 07-29-2011, 11:43 AM

Clyde55 - I was going to call them, but they are Pacific Standard Time.

If they turn out to be 63-72 I will give you first shot at them.

Thanks, NoNeck

BB72CHEVKT · 07-29-2011, 11:45 AM

put me 2nd in line if they are incorrect for your application

**Clyde65** · 07-29-2011, 01:26 PM

Thanks No-Neck.

**leddzepp** · 07-29-2011, 07:07 PM

NoNeck- They are all cast like that. I have a set with the same numbers on my 72. As long as your tie rods and ball joints bolt up, you have the "correct" ones. Before I bought mine off of C/L, I called McGaugheys and he told me there were numerous years with those numbers and the only way to tell the year was by the ball joints and tie rods fitting.

"Heavy Duty" means they take the 1.25" rotors, as opposed to the standard 1". Any parts store should have both for your year.

HotRod C/10 · 10-22-2012, 10:07 PM

i know this is an old thread but my moog K6024 and K6023 ball joints dont seem to fit. My upper a_arm is hitting the spindle.

**lolife99** · 10-22-2012, 10:42 PM

Quote:

Originally Posted by HotRod C/10

i know this is an old thread but my moog K6024 and K6023 ball joints dont seem to fit. My upper a_arm is hitting the spindle.

K6024 is a 63-70 upper ball joint.
K6023 is a 63-70 lower ball joint.

What year spindles do you have?

HotRod C/10 · 10-22-2012, 11:50 PM

I have the right ones 6072R and 6072R....seems theres an issue with the flat pad on the spindle and the arm touching without a load on them......Put a load on them and all is good........whew!

07-29-2011, 10:33 AM	#1
NoNeck Registered User Join Date: Jan 2011 Location: Chattanooga, TN Posts: 1,108	McGaughy's Drop Spindle Question My son purchased a set of McGaughy's Classic Drop 2.5" Spindles from a forum member. We have the spindles installed, and the ball joints and tie rods bolt up just fine. His truck has an '84 front suspension cradle, so the drop spindles were supposedly for the '73-'87 trucks. The numbers cast onto the face of the spindles are "6072L and 6072R". The original McGaughy's box states to use "Heavy Duty" brake components. We have contacted both Summit and Jegs to order cross-drilled and slotted rotors for these spindles. The problem is, they don't show a part number for the spindles. Plus, when I do a Google search, nothing comes up. I am wondering if the number "6072" might be a very early McGaughy's casting, and designates the model years '60-'72? I guess I will try to call McGaughy's when they open. Any info until then would be appreciated. Thanks, NoNeck __________________ 2016 RAM Laramie HEMI 1966 Fairlane GT/A, 390/335 HP If it costs you a dollar to make a friend, KEEP THE DOLLAR. If it costs you a friend to make a dollar, KEEP THE FRIEND.

07-29-2011, 11:26 AM	#2
Clyde65 1965 Chevy C10, 2005 4.8L/4l60 Join Date: Aug 2004 Location: DFW Texas Posts: 8,545	Re: McGaughy's Drop Spindle Question I think they are 63-72 , have you called McGaughy's? Let me know, if they are and you cant use them, I may be interested. __________________ Clyde65 Rebuild of Clyde http://67-72chevytrucks.com/vboard/s...84#post8338184 69 Aristocrat Lo Liner build http://67-72chevytrucks.com/vboard/s...84#post7561684 *support our troops!*

07-29-2011, 11:43 AM	#3
NoNeck Registered User Join Date: Jan 2011 Location: Chattanooga, TN Posts: 1,108	Re: McGaughy's Drop Spindle Question Clyde55 - I was going to call them, but they are Pacific Standard Time. If they turn out to be 63-72 I will give you first shot at them. Thanks, NoNeck __________________ 2016 RAM Laramie HEMI 1966 Fairlane GT/A, 390/335 HP If it costs you a dollar to make a friend, KEEP THE DOLLAR. If it costs you a friend to make a dollar, KEEP THE FRIEND.

07-29-2011, 11:45 AM	#4
BB72CHEVKT Junior Member Join Date: Mar 2007 Location: Hideaway, TX Posts: 4,950	Re: McGaughy's Drop Spindle Question put me 2nd in line if they are incorrect for your application __________________ 71 Suburban 350/700R4 Project Trixie 72 CHEVY,Highlander,SWB,396,T400

07-29-2011, 01:26 PM	#5
Clyde65 1965 Chevy C10, 2005 4.8L/4l60 Join Date: Aug 2004 Location: DFW Texas Posts: 8,545	Re: McGaughy's Drop Spindle Question Thanks No-Neck. __________________ Clyde65 Rebuild of Clyde http://67-72chevytrucks.com/vboard/s...84#post8338184 69 Aristocrat Lo Liner build http://67-72chevytrucks.com/vboard/s...84#post7561684 *support our troops!*

07-29-2011, 07:07 PM	#6
leddzepp Moderator Join Date: May 2007 Location: Southern Cal Posts: 20,018	Re: McGaughy's Drop Spindle Question NoNeck- They are all cast like that. I have a set with the same numbers on my 72. As long as your tie rods and ball joints bolt up, you have the "correct" ones. Before I bought mine off of C/L, I called McGaugheys and he told me there were numerous years with those numbers and the only way to tell the year was by the ball joints and tie rods fitting. "Heavy Duty" means they take the 1.25" rotors, as opposed to the standard 1". Any parts store should have both for your year. __________________ 1972 C/10 Cheyenne Super SWB. Restored, loaded, slammed. 1968 C/10 50th Anniversary LWB. Unrestored, stock, daily driver/work truck. RIP ElJay RIP 67ChevyRedneck RIP Grumpy Old Man RIP FleetsidePaul

10-22-2012, 10:07 PM	#7
HotRod C/10 Registered User Join Date: Feb 2012 Location: Albuquerque NM Posts: 3,053	Re: McGaughy's Drop Spindle Question i know this is an old thread but my moog K6024 and K6023 ball joints dont seem to fit. My upper a_arm is hitting the spindle. __________________ SOLD -77 CHEYENNE SWB, LS SWAPPED -1976 SILVERADO YUBA GOLD/NEUTRAL (2-TONE)

10-22-2012, 11:50 PM	#9
HotRod C/10 Registered User Join Date: Feb 2012 Location: Albuquerque NM Posts: 3,053	Re: McGaughy's Drop Spindle Question I have the right ones 6072R and 6072R....seems theres an issue with the flat pad on the spindle and the arm touching without a load on them......Put a load on them and all is good........whew! __________________ SOLD -77 CHEYENNE SWB, LS SWAPPED -1976 SILVERADO YUBA GOLD/NEUTRAL (2-TONE) Last edited by HotRod C/10; 10-22-2012 at 11:57 PM.



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